
Reciprocal trig ratios (article) | Khan Academy
The secant (sec) The secant is the reciprocal of the cosine. It is the ratio of the hypotenuse to the side adjacent to a given angle in a right triangle.
Secant line with arbitrary difference (with simplification)
We know the two points that are on the secant line. It might not be obvious from how they wrote it but let's make a little table here to make that a little bit clearer.
Secant lines: challenging problem 1 (video) | Khan Academy
Well, let's think about what happens if we take the secant line, if we're trying to find the slope of the secant line, between this point and this point, if we wanted to find the average rate of …
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Free Math Worksheets - Khan Academy Blog
Mar 15, 2021 · Looking for free math worksheets? You’ve found something even better! That’s because Khan Academy has over 100,000 free practice questions. And they’re even better …
Secant line with arbitrary point (video) | Khan Academy
So I want to find the slope of that secant line. Well, to find the slope of the secant line, I just need to find the change in y and the change in x between these two points.
Secant lines & average rate of change (video) | Khan Academy
Learn how to calculate the average rate of change for a function and its connection to the slope of a secant line. Grasp the concept of instantaneous rate of change and its significance in …
Secant lines & average rate of change - Khan Academy
Find the average rate of change of a function, or the slope of a secant line to the graph of the function.
Secant line with arbitrary difference (video) | Khan Academy
We're going from two to two plus h, so our change in x is equal to h. So the slope of the secant line, the slope of the secant line, a secant that intersects our graph in two points is going to be …
Secant line with arbitrary point (with simplification)
Sal finds and simplifies the expression for the slope of the secant line between x=3 and x=t on the graph of y=2x²+5x.